Changeset 222e57c in mainline for uspace/lib/libc
- Timestamp:
- 2008-01-06T19:39:13Z (18 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 41a0d27
- Parents:
- 10d6b858
- Location:
- uspace/lib/libc
- Files:
-
- 2 edited
Legend:
- Unmodified
- Added
- Removed
-
uspace/lib/libc/generic/vfs.c
r10d6b858 r222e57c 1 1 /* 2 * Copyright (c) 200 7Jakub Jermar2 * Copyright (c) 2008 Jakub Jermar 3 3 * All rights reserved. 4 4 * … … 185 185 return (ssize_t) IPC_GET_ARG1(answer); 186 186 } 187 188 off_t lseek(int fildes, off_t offset, int whence) 189 { 190 int res; 191 ipcarg_t rc; 192 193 futex_down(&vfs_phone_futex); 194 async_serialize_start(); 195 if (vfs_phone < 0) { 196 res = vfs_connect(); 197 if (res < 0) { 198 async_serialize_end(); 199 futex_up(&vfs_phone_futex); 200 return res; 201 } 202 } 203 204 off_t newoffs; 205 rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence, 206 &newoffs); 207 208 async_serialize_end(); 209 futex_up(&vfs_phone_futex); 210 211 if (rc != EOK) 212 return (off_t) -1; 213 214 return newoffs; 215 } 216 187 217 /** @} 188 218 */ -
uspace/lib/libc/include/unistd.h
r10d6b858 r222e57c 42 42 #define getpagesize() (PAGE_SIZE) 43 43 44 #define SEEK_SET 0 45 #define SEEK_CUR 1 46 #define SEEK_END 2 47 44 48 extern ssize_t write(int fd, const void * buf, size_t count); 45 49 extern ssize_t read(int fd, void * buf, size_t count); 50 extern off_t lseek(int, off_t, int); 51 46 52 extern void _exit(int status); 47 53 extern void *sbrk(ssize_t incr);
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